The follow is how to reproduce this issue:arm-xxx-gcc -g -lpthread 1.c -o 1copy 1.c and 1 to a arm board.Goto this board.ulimit -c 1800000./1# ./1121......11: 1.c:37: main: Assertion `0' failed.Aborted (core dumped)Then you can get a core file.gdb 1 core.xxx

Without the patch:(gdb) info threads 3 process 909 0x00000000 in ?? () 2 process 908 0x00000000 in ?? ()* 1 process 907 0x4a6e2238 in raise () from /lib/libc.so.6You can found that the pc of 909 and 908 is 0x00000000.